Bereavement, a young hobgoblin man who was the runaway, adopted son of the Raven Queen. He was killed as a baby and the Raven Queen chose to adopt him and return him to life rather than send him on to the afterlife, and he was raised in her court. He was unhappy with the impartial nature of death and decided to run away from home so he could take death into his own hands. He stole a sword and ran off into the realm of the living, but his inexperience in anything but the Raven Queen's court led him to become lost very quickly. Though angry about his betrayal, the Raven Queen still thought of Bereavement as her son so she granted him powers that helped him stay alive on his adventures, and through this bond Bereavement became a warlock.
Eventually Bereavement found his way to the Yawning Portal in Waterdeep, but once he entered he discovered that he had been transported to another world, built to look like the Yawning Portal, and run by a powerful magic being disguised as Durnan, owner and bartender of the Yawning Portal. He and several other adventurers were forced by NotDurnan to go on a series of adventures for him with the promise that they would be returned to their lives if they completed these adventures. They were tasked with retrieving a series of magical artifacts which NotDurnan planned to use for unknown ends. Bereavement and a group of adventurers, including his new friend Twig, a Goliath ranger who constantly kept Bereavement out of trouble, explored the Sunless Citadel where they slew a dragon and befriended the kobold Meepo, though none of Bereavement's pleading would convince Meepo to join them on further adventures. Bereavement constantly attempted to befriend monstrous enemies because to the eyes of many, he was also a monster because he was a hobgoblin. This had mixed results. After retrieving the magic item there, they were sent on the next adventure to the Forge of Fury where they skipped the majority of the dungeon and were severely underleveled for the fight against a bigger dragon at the end of the dungeon. However, through sheer luck they managed to slay the dragon, but were double-crossed by the duergar that lived in the dungeon and because they were still wounded from the fight with the dragon, the entire party perished.
In death, Bereavement had a vision where he was confronted by his mother and forced to choose between saving his friends and becoming even more powerful. He chose to save his friends, and then awoke in the hut of an old woman with the rest of the party. She revealed herself to be NotDurnan's sister, and that NotDurnan was using the party to accomplish a dark task that would result in great destruction (which was not really surprising, we all knew NotDuran was shady). She wanted to prevent this, for both the good of the realm and because of her sibling rivalry with her brother. She told us that NotDurnan would become vulnerable once he possessed all of the artifacts he required, but only until he could finish using them in a ritual that would bring ruin to the entire Forgotten Realms. She gave us a choice: we could be brought back to life with her magic, retrieve the magic artifacts for NotDurnan, and then slay him as he prepares to use them, or we could pass on to the afterlife, knowing that NotDurnan would just get another group of adventurers to accomplish his goals and end the world. The entire party chose to return to life and fight NotDurnan. We were warned that if we died again, she would not be able to resurrect us, and then we were returned to life.
From there it was a simple series of adventures and hijinks, and Bereavement grew more powerful as he bonded with his friends and eventually the party collected the final artifact. When they returned, NotDurnan took the artifact and revealed himself to be a powerful fiend, and offered to let us live while he destroyed the world. We could not let that happen, so we fought him. The battle was tense, and while we did not deal the killing blow, we forced NotDurnan to rush his ritual, and he destroyed himself in the process.
At his death, a doorway appeared and the party passed through it. NotDurnan's sister appeared and revealed that she had lied through omission. Her power could only keep us alive for a while, and that our time was up now that we had fulfilled our purpose. We must pass on to the afterlife. Bereavement happily passed on to the next life, where he spent plenty of time with his friends and made up with his mom.